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fabaa6915b
Derived to MatrixBase. * the optimization of eval() for Matrix now consists in a partial specialization of ei_eval, which returns a reference type for Matrix. No overriding of eval() in Matrix anymore. Consequence: careful, ei_eval is no longer guaranteed to give a plain matrix type! For that, use ei_plain_matrix_type, or the PlainMatrixType typedef. * so lots of changes to adapt to that everywhere. Hope this doesn't break (too much) MSVC compilation. * add code examples for the new image() stuff. * lower a bit the precision for floats in the unit tests as we were already doing some workarounds in inverse.cpp and we got some failed tests.
14 lines
504 B
C++
14 lines
504 B
C++
MatrixXd m(3,3);
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m << 1,1,0,
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1,3,2,
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0,1,1;
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cout << "Here is the matrix m:" << endl << m << endl;
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LU<Matrix3d> lu(m);
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// allocate the matrix img with the correct size to avoid reallocation
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MatrixXd img(m.rows(), lu.rank());
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lu.computeImage(&img);
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cout << "Notice that the middle column is the sum of the two others, so the "
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<< "columns are linearly dependent." << endl;
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cout << "Here is a matrix whose columns have the same span but are linearly independent:"
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<< endl << img << endl;
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